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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is free software; you can redistribute it and/or modify it
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 *
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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package jdk.jpackage.internal.pipeline;

import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertThrows;

import java.util.List;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.MethodSource;

final class DirectedEdgeTest {

    @ParameterizedTest
    @MethodSource
    public void testCtor(String tail, String head, Class<? extends Exception> expectedExceptionType) {
        if (expectedExceptionType != null) {
            assertThrows(expectedExceptionType, () -> DirectedEdge.create(tail, head));
        } else {
            final var edge = DirectedEdge.create(tail, head);
            assertSame(tail, edge.from());
            assertSame(head, edge.head());
            assertSame(head, edge.to());
        }
    }

    private static List<Object[]> testCtor() {
        return List.<Object[]>of(
                new Object[] { "a", "b", null },
                new Object[] { "a", "a", IllegalArgumentException.class },
                new Object[] { "a", null, NullPointerException.class },
                new Object[] { null, "b", NullPointerException.class },
                new Object[] { null, null, NullPointerException.class }
        );
    }
}
